ML20085M007

Telecopy AO BFAO-7410T:on 740213,during Routine Surveillance Testing,Main Steam Line High Flow Pressure Switches PdIS-1-36B & PdIS-1-50A Found Outside Tech Spec Trip Level Settings.Switches Reset & Checked for Repeatability

ML20085M007
Person / Time
Site:	Browns Ferry
Issue date:	02/14/1974
From:	Green H TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20085M003	List: ML20085L998 ML20085M004 ML20085M007
References
AO-BFAO-7410T, NUDOCS 8311070084
Download: ML20085M007 (1)

Text

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BFAO-7410T DURING ROUTINE SURVEILANCE TESTING ON FEBRUARY 13 >

1974 PRESSURE SWITCHES PDISI-36B AND l-50A MAIN STEAM LINE HIGH l FLOW WERE FOUND OUTSIDE TECHNICAL SPECIFICATIONS TRIP LEVEL 3 SETTINGS OF LESS THAN OR EQUAL 70 140 PERCENT FLOW WHICH CORRESPONDS TO 108.75 PSID THE SWITCHES OPERATED AT 109.7 AND 109.0 PSID 3 RESPECTIVELY THE SWITCHES WERE RESET TO A SET POINT OF 106.5 PSID AND CHECKED FOR REPEATABILITY THE REACTOR WAS IN COLD SHUTDOWN 3 TENNESSE VALLEY AUTHORITY H J GREEN BROWNS FERRY NUCLEUR PLANT r-1201 (R5-69) t .

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